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Int J Dev Biol. 2007;51(6-7):557-70.

A network of growth and transcription factors controls neuronal differentation and survival in the developing ear.

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1
Instituto de Investigaciones Biomedicas "Alberto Sols", CSIC-UAM, Madrid, Spain.

Abstract

Inner ear neurons develop from the otic placode and connect hair cells with central neurons in auditory brain stem nuclei. Otic neurogenesis is a developmental process which can be separated into different cellular states that are characterized by a distinct combination of molecular markers. Neurogenesis is highly regulated by a network of extrinsic and intrinsic factors, whose participation in auditory neurogenesis is discussed. Trophic factors include the fibroblast growth factor, neurotrophins and insulin-like peptide families. The expression domains of transcription factor families and their roles in the regulation of intracellular signaling pathways associated with neurogenesis are also discussed. Understanding and defining the key factors and gene networks in the development and function of the inner ear represents an important step towards defeating deafness.

PMID:
17891717
DOI:
10.1387/ijdb.072373hs
[Indexed for MEDLINE]
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